Q66 · CSIR NET Chemistry, June 2015
Paper: CSIR NET June 2015 · Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Organometallic Compounds – General · Marks: 2 · Difficulty: Easy
Match column A (coupling reactions) with column B (reagents)
The correct match is:
| Column-A | Column-B | ||
|---|---|---|---|
| (1) | Suzuki coupling | (I) | $\mathrm{H_2C{=}CHCO\ CH}$ |
| (2) | Heck coupling | (II) | RB(OH), |
| (3) | Sonagashira coupling | (III) | PhCO(CH) ZnI |
| (4) | Negeshi coupling | (IV) | CHECR |
| (V) | SnR |
(a)I-II, 2-1, 3-IV, 4-III
(b)1-1, 2-V. 3-III, 4-IV
(c)1-IV, 2-III, 3-11, 4-1
(d)1-11.2-111, 3-IV,4-V
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
Suzuki uses RB(OH)₂, Heck an acrylate, Sonogashira a terminal alkyne and Negishi an organozinc. 1-II, 2-I, 3-IV, 4-III (a).
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